Rafael J. Wysocki wrote:> On Friday, 28 of March 2008, Venki Pallipadi wrote:>> On Fri, Mar 28, 2008 at 03:09:22PM -0700, David Brownell wrote:>>> On Friday 28 March 2008, Pallipadi, Venkatesh wrote:>>>> You should have a dmesg line which looks like>>>> ACPI: CPU0 (power states: C1[C1] C2[C2]>>>> Do you see C2 in such line?>>> Yes:>>>>>> ACPI: CPU0 (power states: C1[C1] C2[C2])>>>> David,>>>> I think I figured out the bug...>>>> Can you try the below patch and confirm that it works (over upstream - ignore>> the earlier revert patch I sent to you).>>>> Thanks,>> Venki>>>> ---->>>>>> Patch to fix huge number of wakeups reported due to recent changes in>> processor_idle.c. The problem was that the entry_method determination was>> broken due to one of the recent commits (bc71bec91f987) causing>> C1 entry to not to go to halt. This should also fix the hang reported here.>> http://bugzilla.kernel.org/show_bug.cgi?id=10093> > Ah, thanks for figuring that out. As a regression fix, it should go upstream> ASAP, I think...

Would this have any applicability to 2.6.24 as well?

I have seen/reported a similar bug there many times in the past,with no resolution. There's even a bugzilla entry for it somewhere.???